包装箱制作摘要
本设计不仅具备油烟机基本开关功能，而且还能根据厨房在烧菜做饭过程中产生的烟气温度高，而泄漏的燃气温度低的特点，采取不同的传感器件，即对温度高、污染大的烟气采用热敏电阻检测，而温度低但危险大的燃气采用气敏传感器检测，当厨房的油烟或可燃有害气体达到一定浓度的值时，经传感器进入单片机分析，使电机电路自动启动并发出声音报警，吸油烟机迅速将有害气体抽走。本设计设有定时功能，可对抽烟烟机进行工作时长的设定。论文的硬件部分主要设计了油烟机的烟气、燃气检测模块，按键输入模块，定时显示模块，执行电路模块等，系统软件部分主要是对各模块的流程做了详细的的分析，控制主程序、中断按键扫描子程序、显示子程序，中断报警服务程序，以此从而实现抽油烟机自动控制的功能。 本次设计的抽油烟机主要靠单片机进行控制，通过软件设计来自动控制抽油烟机的开关，所以相对于普通的抽油烟机来说，根据其自动检测功能，具有灵活性比较好，功耗低，便于操作等特点。
关键词：单片机，抽油烟机，检测，自动控制
ABSTRACT
This design not only have the hood of basic switching function， but also according to the kitchen to cook in the cooking temperature of gas generated in the process， whereas the leakage of gas temperature and low characteristics of the sensors to different parts， namely蛇形线， high temperaturesaw1， pollutionlarge gas detection by thermal resistance， while the temperature is low but the risk of large gas using gas sensors detect when the kitchen harmful fumes or flammable gas reaches a certain concentration value， by the sensor into the single chip analysis， the circuit automatically starts the motorand sound alarm， range hood quickly take away the harmful gases.This design has timing， work can smoke when smoking a long set.The hardware part of the paper the main design of the hood of smoke， gas detection module， key input module， timing display module单点系泊系统， the implementation of the circuit module， the system software component is the process of each module to do a detailed analysis of the main program control， break key scan routines， display routines， interrupt service routine alarm， automatic range hood in order to achieve the function.
The design of the hood is controlled mainly by SCM， software designed to control the switching range hood，app监测 so relative to the normal range hood， according to its automatic detection， better flexibility， power consumptionlow，7705ac easy to operate and so on.
KEY WORDS: microcontroller，range hood， detection， automatic control
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